90 MANDIBULATA. NEUROPTERA, 



two basal segments of the abdomen luteous^ the antepenultimate one beneath ^ 



with an acuminate process. ^ 



Rare in England : it has been found within the metropolitan 

 district in June. 



Sp. 3. Curtisii. M,neo-viridis, nitida, abdomine compresso, lined interrupta 

 dorsali lutea, appendicibus analibus maris superioribus incurvatis, pilosis, 

 inferiorihus brevibus emarginatis. (Long. corp. 2 unc. — 2 unc. 14 lin. ; Exp. 

 Alar. 2 unc. 10 lin. — 3 unc.) 



Co. Curtisii. Dale {Loudon's Mag. v. vi. p. 180.) — Cor. compressa. Steph. 

 Catal. 309. No. 3436. 



Brassy-green, shining; mouth below and streak on the labrum luteous; eyes 

 greenish ; thorax clothed with pale down, its extreme apex and two inde- 

 terminate spots towards the base of the wings reddish; abdomen clavate, 

 the two basal segments with a narrow luteous streak, the 3rd to the 7th 

 with an interrupted dorsal line, and the 8th with a spot at the base luteous, 

 9th immaculate, 10th with a luteous patch ; anal appendages moderate, 

 upper pair pilose and incurved, lower pair shorter, emarginate; legs black; 

 wings hyaline. Female of a brighter green, the abdomen compressed and 

 carinated, the dorsal streak broader, and the margins of the 3rd, 4th, and 

 5th segments luteous ; wings flavescent, with a black stigma. 



I believe the only locality for this insect to be the New Forest, in 

 the vicinity of Brockenhurst, where it occurs in June and July. 



Genus XV.— LIBELLULA Auctorum. 



Labium tumid, its middle lobe small, transverse-semicircular, faintly produced 

 in the middle, lateral lobes very ample, transverse-quadrate, truncate at 

 the apex, and surrounding the inner lobe : labrum entire : head large, semi- 

 globose : forehead vesicular and pilose : e;t/es contiguous, or nearly so, in 

 front : ocelli three, placed in a triangle on a distinct vesicle : thorax ample, 

 pilose: bodi/ not metallic: abdomen of variable form, rarely clavate, its 

 anal appendages moderate, or short : wings ample ; posterior pair rounded 

 on the inner margin in both sexes; stigma generally oblong. 



As mentioned under Cordulia, this genus differs in the form of the 

 labium and labrum, and in general by having the abdomen more or 

 less depressed, rarely clavate ; the posterior wings are rounded on 

 the inner margin in both sexes : the genus probably requires sub- 

 division, for the insects belonging to section D. differ considerably 

 from the others, both in size and in general form. 



